Understanding causality may be not enough to follow God’s path. In the Osashizu is the following:
In the world’s path, you can do whatever you want and get away with it, so long as no one sees you do it. But in the path of the heart (causality), it all comes to bear on you. In the world’s path, you never know what pitfalls lie ahead or where swords await you. And since God’s path is a path of the three-inch heart, your ideas of wanting to follow this path many not be enough to get you through it. January 27, 1891
If one does not understand causality, one would be at loss when tragedy or the unexpected occurs. When one understands causality, one can accept the unacceptable, knowing that positive responses will plant good seeds that will bloom in the future.
But sometimes even when one is aware of causality one regresses to negative responses when tragedy or the unexpected occur. Worry, arrogance, greed, and self-love reappear which plants the seeds for sufferings. This is why one must have single-hearted faith in God’s love for all mankind. We must eliminate our selfishness, in order for us to follow God’s path to a joyous life. Causality is the truth that one must understand; but God’s love for all mankind is the ultimate truth that we must all understand. God’s love is unlimited!